TDRSS lightcurve for Trigger=1216910
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 22 Feb 24 23:54:14 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1216910, Seg_Num: 0
GRB_RA: 245.462d {+16h 21m 51s} (J2000),
245.806d {+16h 23m 13s} (current),
244.750d {+16h 19m 00s} (1950)
GRB_DEC: -15.752d {-15d 45' 08"} (J2000),
-15.808d {-15d 48' 28"} (current),
-15.635d {-15d 38' 06"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=5584 [image_cnts]
TRIGGER_DUR: 64.000 [sec]
TRIGGER_INDEX: 20000 E_range: 15-50 keV
BKG_INTEN: 0 [cnts]
BKG_TIME: 0.00 SOD {00:00:00.00} UT
BKG_DUR: 0 [sec]
GRB_DATE: 20362 TJD; 53 DOY; 24/02/22
GRB_TIME: 85855.03 SOD {23:50:55.03} UT
GRB_PHI: -96.59 [deg]
GRB_THETA: 0.20 [deg]
SOLN_STATUS: 0x10000413
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 18.24 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 +6 +0 +0 -3 +0
SUN_POSTN: 335.75d {+22h 23m 01s} -10.09d {-10d 05' 36"}
SUN_DIST: 87.21 [deg] Sun_angle= 6.0 [hr] (West of Sun)
MOON_POSTN: 140.94d {+09h 23m 46s} +19.90d {+19d 53' 58"}
MOON_DIST: 108.96 [deg]
MOON_ILLUM: 98 [%]
GAL_COORDS: 359.32, 23.36 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 246.32, 5.69 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This Notice was delayed by more than 60 sec past the end of the trigger integration interval;
COMMENTS: probably due to it occurring during a Malindi downlink session.
COMMENTS: This is an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)
COMMENTS: A point_source was found.
COMMENTS: This does not match any source in the on-board catalog.
COMMENTS: This does not match any source in the ground catalog.
COMMENTS: This is a GRB.
COMMENTS: This trigger occurred at longitude,latitude = 152.06,6.85 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 22 Feb 24 23:55:31 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1216909, Seg_Num: 0
GRB_RA: 245.420d {+16h 21m 41s} (J2000),
245.764d {+16h 23m 03s} (current),
244.708d {+16h 18m 50s} (1950)
GRB_DEC: -15.771d {-15d 46' 14"} (J2000),
-15.826d {-15d 49' 34"} (current),
-15.654d {-15d 39' 12"} (1950)
GRB_DATE: 20362 TJD; 53 DOY; 24/02/22
GRB_TIME: 85439.03 SOD {23:43:59.03} UT
TRIGGER_INDEX: 20000
GRB_PHI: -89.45 [deg]
GRB_THETA: 0.16 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x41D
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 16.70 [sigma]
LC_URL: sw01216909000msb.lc
GCN template for BAT paragraph
Click here!
At 23:43:59 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240222 ***A*** (trigger=1216910). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 245.420, -15.771 which is
RA(J2000) = 16h 21m 41s
Dec(J2000) = -15d 46' 14"
with an uncertainty of 3 arcmin (radius, 90% containment, including
systematic uncertainty). The BAT light curve showed a [**double-peaked**]
structure with a duration of about TTT sec. The peak count rate
was ~0 counts/sec (15-350 keV), at ~ sec after the trigger.
Test version of draft template
Initial TDRSS lightcurve and spacecraft attitude plot
TDRSS lightcurve from T0-30 to T0+50 (zoom in)
TDRSS light curve from T0-1 to T0+2 (More zoom in)
1.6s binned TDRSS light curve
Tilan's background subtracted TDRSS light curves
Extended TDRSS light curve and spacecraft attitude plot(s)
Extended TDRSS lc No.1
TDRSS extended lightcurve from T0-1 to T0+2
T50 and T90 calculation
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 245.420 -15.771 0.083
No match
Search for this GRB position to the source locations in BAT transient monitor (search radius within 12 arcmin)
python compare_catalog.py 245.420 -15.771
No match
Link to SIMBAD
Click here for the SIMBAD search!
Frank's UVOT result
Click here!
Frank's UVOT Blinking images
Click here!
Elevation angle of GRB/Sun at the ground telescope locations
GSFC, Greenbelt, Maryland
TimeUT Azimuth Elevation
Sun: 2024 2 22 23 78.545791 -1.974751
Obj: 2024 2 22 23 166.042054 -66.288845
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 2 22 23 57.617923 26.293096
Obj: 2024 2 22 23 104.238831 -50.586422
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 2 22 23 52.138289 29.464466
Obj: 2024 2 22 23 101.569874 -45.299640
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 2 22 23 11.055849 59.521563
Obj: 2024 2 22 23 76.801873 -10.480130
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 2 22 23 256.537931 39.331588
Obj: 2024 2 22 23 103.483077 50.328925
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 2 22 23 292.154421 13.014902
Obj: 2024 2 22 23 27.980545 34.974003
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 2 22 23 110.954175 -50.917958
Obj: 2024 2 22 23 267.172012 -39.546566
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 2 22 23 81.177945 4.921404
Obj: 2024 2 22 23 359.852912 -43.863426
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1216910/tdrss_ql/
bat_raw_lc.fits : TDRSS FITS light curve from GCN
gcn_position.txt : GCN BAT position notice
ratelc_tdrss.qdp : QDP file of the TDRSS light curve
tdrss_lc.gif : GIF TDRSS light curve
sc_att.qdp : QDP file of the spacecraft attitude
sc_att.gif : GIF spacecraft attitude
bb.gti : Bayesian block GTI file (battblocks)
dur.gti : Duration GTI file (battblocks)
battblocks.log : Output log of battblocks
Plot creation:
Thu Feb 22 18:56:03 EST 2024